Fan.



P. A. ANDERSON.

FAN.

Armcmon men mm. z3'. um, f 1,261,753. Patented Apr. 9, 191s 2 sains-41mml.

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1P. A. ANDERSON.

' INVEmR PQTNESSES 63 QMLMW M a 'PEB .AUGUST ND-EBSON, OF NEW YORK, N.Y.

FAI?.

Speclcation of Letters Patent.

Patented Apr. 9, 1918.

Application led Enroll 23, 1917. Serial No. 156,885.

To all whom. it may concern:

Be it known that I PER AUGUST ArmanaoN, n. citizen of the-(lnitedStates, and resident of the borough of Manhattan, city,

6 county, and Stato of N ew York, have 1nvented certain new and use fulimprovements in F ana, of which following is a specilcation.

My invention relates to power driven fans and more particularly to thattype thereof 1n which the fan element itself oscillates instead ofrevolves. The object of m 'improvement is to provide a simple and e'cient construction which may be readily shifted 16 about from place toplace and in which the fanning operation is absolutely noseless and isperformed without the creation of any objectionable air currents ordrafts. My .1nvention further contemplates a construction in which thearts may be adjusted so as to the an element either in ayertical or ahorizontal plane or in any intermediate plane as may be desired. .Myimprovement fully. described hereinafterandfthe is features of noveltywill be pointed out m the -draded y the' accompanying drawings, whichfor illustrativo and 'descriptive 'show an le of m invention iguro .1isvaplan n ,'view) section; ig. 2 is a sectional ,e1evat1on; 'gl 8 is asection on the line 3-3 of Fig. 2; Fig. 4 is a. section on theline ofFig. 2; and Fig. 5 1s au enlargedd'etaxl perspective view' of thedriving connection with the fan.

'As shown in the illustrated example my im rovement comprises a base '6of en suitab form and dimensions and which ma be provided with a rubberring 6 or eqmva ent 4o means whereby abrasion by the base of the surfaceupon which it rests is avoided. 'A tubular standard of any desired t pefor 1nstance in the form of an upright ollow rod 7, extends u wardl fromthe base 5 and is preferably etacha ly connected therewith as byscrew-threading, the upper end of said rod 7 being of reduced diameterto form a heck 8 and annular shoulder 9 as' shown in 5o i sleeve 10 ismounted upon tho neck 8 so as to rest upon the shoulder 9 and in theillustrated example is split as indicated at 1l. and provided with lugs12 having screwtbreaded apertures for the accommodation of a thumb screw13 whereby the sleeve 10 is secured against movement on said neck 8.

The sleeve 10 carries a split ring or collar 14 the axis of whichextends at substantially right angles to the axis of the rod 7, saidring being also provided with lugs 15 havin B0 apertures for theaccommodation of a thum screw 1G whereby the ring or collar 14 is spreadand contracted. A cylindrical hollow member 17 is mounted in the ring orco1- lar 14, and isv preferably provided with a pair of annular ribs 18between which said collar fits and whereby relative movement betweensaid casing and collar ineen axial direction is prevented; the thumbscrewr 16 serves to clamp the member 17 firmly-in the 70 collar 14 whenthis is desired and also roleases the same for the ur ose of adjustmentas will be more y isclosed-heinafter. The one open end-of the member-17as shown, is closed b `means of ecover' 19 15 detachably or movab ysecured ilrl 'tion for nstanoe'by means of'scrows'20; doover in thepreferred rovided `with a mampulatiugknob or tho 21- as shown-in Figs. 1and 2. 4 Atitsopposito'cd-thermem-so ber 17 is provided wthaplurslityofwierably'integralfarms221whicheexten loutp wardly` from' 'them'ember' 17anflxial'fdirecton andfeonver'ge towardeach'oggeerlthe outer ends ofsaid armsb'eing'foonn to` ss gather by spaced andparallel ith thisarrangement a'ftapering-spider projects' outward y from' one rendof-saidmember 17 withits free end in axialaegistry with the axis ofsad member17V as v'shown in 90 Fig. 2; in the normal condition ofthe' arts thisspider is covered by a taperingshe 1124 which [its over the arms 22 andis detachably secured in position in anysuitable manner as by means ofscrews 25. Itvwill boseen that when combined the member 17* coverv 19and shell 24 together 'forni a complete casing, having its one endclosed and its other tapering end open as shown in Figsl--and 2.

The arrangement further includes-a. member 26 internally screw-threadedto receive the screw-threaded stem 27 of ahead 28 to which a fan member29 ofanydesiredl or well known construction is secured in'any suitablemanner. The membe'26v loj'ects radially outwardffrom a'drivmgf rum'fBOwhich is rotatably mounted i'betweenvtho cross-pieces 23 for instanceon' arod 31 extending between said cross-pieces.

The means whereby said fan member 29 is oscillated on the ivot 31 maycomprise various types of mec :mism although l preand carries aworm-wheel the screw is constructed fer to use the arrangement shown inthe illustrated example. As shown a sprocket chain or its equivalent 32extends about the drum 30 and is'secured thereto at an intermediatepoint by means of a screw oi the like 32. y The ends of said chain orthe like 32 are connected respectively with links 33 which in turn arepivotally connected at 34 with cranks 35 located at opposite ends of ashaft 36 in oil-set relation to each other. The shaft 36 is journaled ina housing 37 38, which meshes 39, the worm-wheel and worm-gear beingboth located within the housing 37 as shown in Figs. 2 and 4. Thewormear 39 is carried by a shaft '40 one end o which is journaled in acap 41 detachably combined with said housing 37 and the other end ofwhich is rotatabl mounted in and extends through said, casing as shownin Fig 2. The projecting end of the shaft is operatively connected at 42with the power shaft 43 of an electric motor 44, the latter beingconnected by wires 45 which pass throughthe rod 7 with a rheostat or thelike '46 controlled by means of a suitable switch and located in thebase 5 and provided with suitable connections whereby the fan may beoperativel connected with a source of' electricity. i 'e housing '37 andthe motor 44 are both secured upon a platform 47 located within thecasing and supported upon lugs 48 Vwhich are provided withscrew-threaded recesses forthe rece tion of screws 49 extendingrespective y throu h an arm 22 and the member 17 and where y theplatformy 47 and with it the housing 37 and motor y44 are .rigidly andsecurel fastenedinoperative position as a unit. ln the preferred fornithe member 17 with a recess 50 extending circumferentally thereofthroughout a lpart of its circumference for the pui' ose which willappear more clearly hereina ter.

In operation the motor 44 is electrically driven and drives the shaft 43which in turn rotatesu the shaft 40 and worm gear'39', the lattercommunicating motion to the worm wheel 38 and causing with a worm-gearit -to rotate about its axis. As .the worm-wheel. 38 is thus actu atedthe shaft 36 and cranks 35 will be similidi/operated and will thus causea pull to alternately Ilexert/ed 'on the links 33 and chain or the 32which pull in each case `is communicated from opposite directidn/s to orthe like 32* whereby the drum 30 is rocked upon the .pivots 31 and thusoscillates the fan mem er 29.A lf the parts are in the positions shownin Figs. 1 and 2 the oscillation of said place in a vertical plane; ifit is desired to have said fan member 29 oscillatedl in a horizontalplane or 'in any intermediate plane, the thumb screw 16 is firstloosened 66 to release the grip of the collar 14 upon the any changefthe desired adjustment has been had the thumb screw 16 is againtightened to cause the collar 14 to again firmly gri the member 17; theslot 50 in said mem er 17 permits the described adjustments to be madewithout interference with the wires 45, it being understood that thelatter are of suiiicient length to accommodate themselves to in theposition of the parts.

In an position the fan 4member 29 is oscillate to produce a gentledisturbance of the air whereby an air current is created which iscooling and beneficial and in no case constitutes a draft, the operationof the entire mechanism atall times being substantially noiseless. As amatter of fact the apparatus when in operation closely simulates the actof manually fan'riing ones self. The apparatus may be convenientlyshifted about and.' may be vreadily placed in the most advantageousposition at all times; it is simple in construction, reliable inoperation and possees all of the advantages of a revolvin fan withoutany of the disadvantages t ereof.

Whenit is desired to reach the interior of the casing the cover 19 andthe shell 24 may be readily removed, the fan member 29 being rstdisconnected from the member 26 and the screws 25 removed to ference.After this has been done the nte rior of the c asing and the mechanismthere in aire readlly accessible. It will `baseert that the housing 37and motor 44 maybe removed as a unit from the casing with the platform47 by simply removing the-screws 49 and then passing t e unit comprisingthe housing 37, motor 44 and platform 47 through the open end of thecasing which is normally closed b thevcover 19; Prior to this removalthe inks 33 are .disconnected from'the cranks 35. By connetting the -fanmember 29 with the drivin mechanism by means of the chain 32, lin 3.33and oppositely located ofi-set cranks pr in an equivaient manneran`absolute balance is secure and the oscillation of the fan member 29is constant 'and smooth.- and free from jerks or the like whenever themechanism is in operation.

Various changes in the specific form shown and described maybe madewithin the sco of the claims without departing from e spirit of myinvention.

I claim:

1. The combination of a support,a collar, n.

device carrying said collar mounted on said support and rotatablerelatively thereto in a horizontal plane, means for securingr saiddevice in au adjusted position, a casing rotatably mounted in saidcollar and adjustable relatively thereto about an axis transverse to theaxis of said support, means for clamping said casing in said collar, afan member plvotally mounted on said casin and mechanism within saidcasing where y said fan member is oscillated, said fan member andmechanism being movable with said casing whereby the plane ofoscillation of Said fan member is changed.

2. The combination of au u right support, a casing detachably connecteport and tapering toward' its one end, a cover movably mounted at theother end of said easing, a fan member pivotally mounted at the taperingend ot' said casing and actuating mechanism within `qaid casing wherebysaid fan member is oscillated; said mechanism being;l removable as aunit from said casin 3. he combination of a support, a casing carriedthereby, a fan member pivotally mounted on said casing, a platformdetachably secured in Said casing, a motor mounted on said platform,driving` mechanism operatively connected with said motor and ear ries'lby said platform, and means ,whereby said driving mechanism isoperatively conneet-ed with said fan member to oscillate with saidsupsame, said motor, driving mechanism and platform being removable fromsaid casing as a unit.

4. The combination of a support, a casing carried thereby, drivingmechanism within said casing, a driven shaft operatively connected withsaid mechanism, off-set cranks carried by said shaft, a drum rotatablymounted on said casing, a fan member carried by Said drum, a flexiblemember extending about said drum and secured thereto, and linksconnected with the free endsof said flexible member and with said crankswhereby said drum is rocked to oscillate said fan member.

5. The combination of an upright support, a casing connected therewithand includm a taper-in spider at one end, a. fan mm er pivotalir mountedat the free end of said spider, mechanism within said casing wherebysaid fan member is oscillated and a. shell detachably connected with andcovering said spider. f

' 6. The combination of a casing, drivin mechanism within said easing,a. driven sha operatively connected with said mechanism, off-set crankscarried by said shaft, a fan member-pivotally mounted on said casing andmeans `connecting said cranks and sai fan member whereby the latter isoscillated. In testimony whereof I have hereunto set lny hand.

, PER AUGUST ANDERSON.

